The contact owns a 2009 Chevrolet Express. The contact stated the vehicle accelerated independently without warning while stopped at a traffic light. The contact turned the vehicle off for several seconds and then restarted the vehicle and drove to his residence. The vehicle was repaired however, the failure recurred. The vehicle was taken to a local dealer to be diagnosed. The manufacturer was notified of the failure. The failure mileage was 61,000. Consumer stated same thng happened the second time 7 months later.

- Danvers, MA, USA

While driving on a busy highway, the engine shut off completely. I pulled over to the shoulder and the dic indicated a throttle position sensor problem. I had it towed to a Chevrolet dealer and they told me it was the ECM. I paid to have it fixed and sent an email (attached) to Chevrolet customer assistance center requesting reimbursement.since the vehicle's mileage was only 39226 miles. I'm still pursuing reimbursement but want to file this complaint since this is a major safety problem to have vehicle totally shut down. Interestingly, Chevrolet was aware of a similar problem with the throttle position sensor and sent me a letter (attached) to extend the warranty.

- Saint Louis, MO, USA

The contact owns a 2009 Chevrolet Express 3500. The contact stated that the vehicle independently accelerated to approximately 10 mph. The engine was on; however, the gear shift was in the park position with no driver. The contact mentioned that the front passenger seat was occupied at the time of the failure. The vehicle crashed into a wall. The vehicle was taken to an independent mechanic where the failure was unable to be determined. The vehicle was not repaired. A police report was filed and there were no injuries reported. The manufacturer was not notified of the failure. The approximate failure mileage was 123,000.

- Morganfield, KY, USA